Specifically, what game have you tried to play? If it's Wii game, can you post a screenshot of the Wmulated Wiimote settings? For GC games, a screenshot of your GC controller settings would help.
Another question, when you configure input, does Dolphin recognize that? For example, can you remap the GC "A" button to your keyboard or controller? If Dolphin does recognize it, pressing whatever you mapped should light up a little box on the input screen.
Another question, when you configure input, does Dolphin recognize that? For example, can you remap the GC "A" button to your keyboard or controller? If Dolphin does recognize it, pressing whatever you mapped should light up a little box on the input screen.